Sash-center.



J.J.DELANEY. SASH CENTER. APPLICATION man MAY 4, 1912.

1,13Z,706., Patented Apr. 27, 1915.

aag'q.

LU PHOTO-.JTHLI, WASHINGTON. 'DJC.

JOHN J". DELANEY, OF DETROIT, MICHIGAN.

Specification of Letters Patent.

FFTQ.

-.- i SASI-I-CENTER.

Patented Apr. 27, 1915.

Application filed May 4, 1912. Serial No. 695,090.

To all whom it may concern Be it known that 1, JOHN J. DELANEY, acitizen of the United States of America, residing at Detroit, in thecounty of Wayne and State of Michigan, have invented certain new anduseful Improvements in Sash- Centers, of which the following is aspecification, reference being had therein to the accompanying drawings.

The invention relates to sash centers of that type in which the devicemay first be attached to the window sash, and then-together with thelatter-placed in engagement with the Window frame and secured inposition.

It is the object of the invention to simplify the construction andcheapen the manufacture; also, to obtain a stronger and more durablemechanical structure.

To this end, the invention consists in the construction as hereinafterset forth.

In the drawings,-Figure 1 is a horizontal section through the windowframe and center, showing the sash turned in horizontal position andsubstantially on lines ww of Fig. 3; F ig's. 2 and 3 are elevations ofthe frame and sash members; Fig. 4 is a perspective view of the variouselements associated with the frame and sash members in the completecenter construction; and Fig. 5 is a section substantially on line y-yFig. 3, showing the weather and light guard.

It is one of the objects of the invention to substitute for the castmetal constructions which have been generally heretofore employed aconstruction the main elements of which may be formed by dies, therebysecuring greater accuracy and mechanical perfection without a materialincrease in cost.

As shown, A is the securing plate of the frame member, which is struckup from sheet metal and is provided with apertures B for the securingscrews, a central aperture C for receiving the pivot pin, and a circularseries of recesses D surrounding said central pin and adapted forengaging ball ratchets. There is also preferably provided centrally andlongitudinally of the member A a groove E having an annular centralportion E in which the weather and light guard is located.

F is the sash member, which is preferably of slightly less length thanthe member A and has squared ends, whereas the member A is preferablyprovided with curved or segmental ends. The member F is centrallyapertured at G to correspond to the aperture 0, and 1s provided with anannular groove H surrounding the aperture and communicating with thecentral longitudinally extending grooves I corresponding to the groovesE E in the member A. The member F is further provided with apertures Jtherethrough, which are radially distant from the center of theapertureG equal to the radius of the annular series of recesses D in the memberA. There are also apertures K for screws or other securing means.

L is the pivot pin, which is formed with a head L thereon and is adaptedto beengaged with the aperture 0 of the member A,the head engaging acountersink surrounding said aperture.

M is a sleeve for engaging the pin L and around which is placed a springN having one end abutting against a flange M on the sleeve.

0 is a Washer or apertured disk surrounding the sleeve M and againstwhich the opposite end of the spring N bears.

P are balls engaging the apertures J and pressed by the washer 0 underthe tension of the spring N into the sockets D of the member A.

Q, is a spring washer interposed between the washer O and the plate F,and R is a cotter pin engaging an aperture L in the pivot pin L andextending out beyond the same into an annular groove M in the member M.

S is a light guard-preferably formed of resilient wirebent to extend inthe grooves E I and H E. This member is in the form of a wire loophaving its end portions S bent into substantial parallelism and itscentral portion into a circular form which will fit in the grooves E H.The portions on the opposite sides of the center of this mem her are,however, sprung out of alinement so as to overlap each other, andconsequently when the member is placed in the grooves of the members A Fit will form a guard intercepting the light and the direct path of airor dust.

The construction of the parts being as above described, in assemblingthe center the pin L is placed into engagement with the aperture C ofthe member A. The member S is then placed in the grooves E E, afterwhich the member F is also sleeved upon the pin and placed in contactwith the member A. Balls P are next placed in the apertures J TheWashers Q 0 are sleeved upon the pin, the latter to bear against theballs P. The sleeve Mis placed in positionwith the spring N surroundingthe same, and

pressure is then applied "to said sleeve to be'mounted upon the sash ofthe window by boring an aperture T of suflicient size to receive theparts and securing the plate F to the sash. The sash is then placed inthewindow frame, and whenothe member A isproperly positioned it maybe-secured by turning the sash at an angle, so as to expose theapertures B for the screws.

In operation, whenever the sash is adjusted upon' its pivot the balls Pwill be forced out of the sockets D against the washer O, and thetension of the spring N bearing thereon, but as soon as they pass intoregistration with another socket D the spring will immediately causerengagement. The guard member S will be slightly sprung by the pressureof the plates A F on opposite sides thereof, and will form a suitablelight guard,

The plates A F being formed. by dies will A be absolutely accurate andtrue, and therefore the operation of centers of this construction willalwaysbe the same, which is not true of constructions formedofunmachined cast parts.

What I claim as my invention is, p

1. A sash center comprising a plate formed with a central aperture'therebeing a groove surrounding said aperture, having portions extendinglongitudinally of the plate and opening through its ends, means forattach: ing the plate to a sash, a pin seated in the apertureoftheplate, a second plate formed with an aperture, and a groove whichsurrounds said aperture, having portions extending longitudinally of theplate and opening through its ends whereby the same will aline with thegroove of the first mentioned plate, resilient means embracing the pinand contacting with the second mentuting a dust guard formed of a strandof resilient material disposed within the alining grooves of the plates.

2. A sash center including a plate se-,

cured to the sash and provided with a central opening, there being aseries of ball sockets surrounding said opening, a second plate, a pinrigidly supported by the first plate and extending through the secondplate, a sleeve mounted on said pin, resilient means for normallyspacing said sleeve from the second mentioned plate, a washer slidablymounted on the sleeve, resilient means for normally forcing said washertoward said second mentioned plate, said plate being provided with aseries of openings which aline with the ball socket of the firstmentioned plate, balls arranged in said opening, said Washer contactingwith said balls.

3. A'sash center including a plate supported by the sash, a second platecarried by the window frame, a pin supported by the first mentionedplate and extending through the second plate within a recess formed inthe frame, a sleeve mounted on said pin, said sleeve being providedterminally with a flange, a stop carried by the pin and contacting withthe flange to maintain the sleeve on the pin, a resilient memberinterposed between the sleeve and the second mentioned plate, a washerslidably mounted on the sleeve, a coiled spring embracing the sleeve,one of the terminal convolutions of said spring contacting with theflange of the sleeve, its other terminal convolution contacting with thewasher, and balls operating through openings formed in the secondmentioned plate and engaging in recesses formed in the first mentionedplate, said washer contacting with said balls to maintain the same incontact with the first mentioned plate. I

In testimony whereof I aflix my signature in presence of two witnesses.

JOHN J. DELANEY.

Witnesses:

JAMES P. BARRY, DELBERT CoLLINs.

'copies of this patent ma; he obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. C.

